Jeptha d



(No Model.)

' J. D. PATTERSON. DEVICE FOR AERATING MILK.

' No. 323,069. Patented July 28, 1885.

W2 uesses.

UNITED STATES PATENT OFFICE.

J EPTHA D. PATTERSON, OF ABBOTTS, NEWV YORK.

DEVICE FOR AERATING MILK.

SPECIFICATION forming part of Letters Patent No. 323,069, dated July 28,1885.

(No model.)

To all whom it may concern.-

Be it known that I, J EPTHA DTA'rTERsoN, a citizen of the United States,residing at Abbotts, in the county of Cattaraugus and State of New York,have invented certain new and useful Improvements in Devices forAerating Milk; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same, referencebeing had to the accompanying drawings, and to the letters and figuresof reference marked thereon, which form a part of this specification.

My invention relates to a device for aerating milk; and it consists inthe novel construction, combination, and arrangement of the severalparts, as will be hereinafter described and claimed.

In the drawings, Figure 1 is a side view of my device, the cylinderbeing broken away to show the piston. Fig. 2 is a detail view of thepiston. Figs. 3, 4, 5, and 6 are detail views of the piston, all ofwhich will be described.

The cylinder A is open at its upper end, and is contracted at its lowerend to form a nipple, a, on which is fitted the air-disshorter than B,so by using first both see I tions, as shown, then removing section 0,and subsequently substituting section 0 for B, I am able to force airinto three different strata of the milk. The number of sections may beincreased to suit the will of the maker. I have only shown two sections,as they illustrate the spirit of my invention. The tubes being of asmall diameter do not practically disturb the cream which may have risenon the milk. The air-piston D operates within the cylinder A, and hasthe arms (1 extended from the lower end of its rod D. The lower ends ofthese arms are threaded to receive the nuts cl. The disks E F areprovided with perforations slipped over the arms d. Central concentricapertures, e f, are formed through these plates, the former, e, beingthe smaller, as shown in Fig. 3. A leather or other suitable elasticdisk, G, is clamped between these plates by the nut (1 being turned upagainst the lower plate. I make the disk G of a larger diameter than thedisks E F, so it will extend beyond said disks, as clearly shown, andform the packing between the same and the walls of the cylinder. Theflap-valve g is out from the center of this leather disk, and is made ofa diameter to fit and operate within opening f, and yet large enough tooperate over the opening 6, around which the valve sits when closed.

The operation is simple, and will be readily seen. With the downwardstroke of the piston the valve closes, and air is forced into the milk.On the upstroke of the piston the valve opens, permitting air to enterthe cylinder,and preventing the piston from sucking the milk up, as willbe understood.

By making the peripheral packing and the valve of the piston from thesame piece of leather, a simple. and cheap construction is provided.

My piston can be easily taken apart for the purpose of cleansing orrenewing any of the parts, as will be understood.

Having described my invention, what I claim, and desire to secure byLetters Patent, 1s-

The herein shown and described milk-cooling device, consisting of acylinder contracted at its lower end to form a nipple and provided withinterchangeable pipe-sections of varying lengths, in combination with apiston working in said cylinder, composed of a rod having arm-extensionsbranching from its lower end, threaded on their outer extremities toreceive a pair of concentrically-apertured disks between which isinterposed a disk of leather the periphery of which extends be- Intestimony whereof Iaffix mysignaturein yond the edges of the disks thethree being presence of two witnesses.

confined by nuts on the threaded ends of said arms, the opening in theupper disk being JEPTHA D. PATTERSON. smaller than the opening in thelower disk to form a seat for a flap-valve out in the center WVitnesses:

of the leather disk, as shown, and for the pur- J. L. ADAMS,

pose described. A. S. ADAMS.

